Changes in Accumulated Other Comprehensive Loss - Schedule of Changes in AOCL by Component (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Sep. 30, 2025	Sep. 30, 2024	Sep. 30, 2025	Sep. 30, 2024
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning balance	$ 910,883	$ 885,806	$ 882,095	$ 882,063
Other comprehensive income (loss) before reclassification	(321)		25,443
Amounts reclassified from other comprehensive loss	(1,308)		2,525
Total other comprehensive income (loss)	(1,629)	29,311	27,968	24,975
Ending balance	914,588	896,130	914,588	896,130
Accumulated Other  Comprehensive Income (Loss)
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning balance	8,496	(44,013)	(21,101)	(39,677)
Ending balance	6,867	$ (14,702)	6,867	$ (14,702)
Retirement Obligations
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning balance	15,485		14,760
Other comprehensive income (loss) before reclassification	165		1,092
Amounts reclassified from other comprehensive loss	(206)		(408)
Total other comprehensive income (loss)	(41)		684
Ending balance	15,444		15,444
Foreign Currency
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning balance	(4,156)		(33,942)
Other comprehensive income (loss) before reclassification	(1,467)		28,319
Amounts reclassified from other comprehensive loss	0		0
Total other comprehensive income (loss)	(1,467)		28,319
Ending balance	(5,623)		(5,623)
Change in Derivatives Qualifying as Hedges
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning balance	(2,833)		(1,919)
Other comprehensive income (loss) before reclassification	981		(3,968)
Amounts reclassified from other comprehensive loss	(1,102)		2,933
Total other comprehensive income (loss)	(121)		(1,035)
Ending balance	$ (2,954)		$ (2,954)